The seals are terrible. Do not tighten the connectors with your fingers. Gaskets are too hard. You should use pliers to tighten them just enough so they don't leak.
Enhanced Elitech ILD-300 Infrared Refrigerant Leak Detector: Advanced HVAC Halogen Tester with Selectable Gas Functionality
9 Review
๐ UView 560000 Combustion Leak Tester: A Reliable Tool for Efficient Diagnosis
9 Review
VIVOHOME 220LB HVAC Electronic Digital Refrigerant Charging Weight Scale โ High Precision with Protective Case
9 Review
๐ช Enhanced Universal R134A Valve Core Remover/Installer by Mastercool (81290)
9 Review